More friction, you need friction in order to get out. Place something in front or behind the tire in order to get out, even a cloth towel will help.
It is better to have less friction because it will be easier to get out.
More
It is better to have more friction when stuck in mud or snow, so that you can more easily get un-stuck.
cars, lifts, computers, TV, radio, lights/lamps, electric stuff and animals/human
craig
Friction is force that opposes an objects motion. Therefore, the less friction the object encounters, the less opposition it will have to its direction of travel. The less opposition it has, the faster it may go. Theoretically, a moving object that encounters no friction will continue to travel at a constant rate for EVER.
sliding friction is less than static friction. it is also very easy to move better than static friction.
less pollution
I slippery surface means that there would be less friction, which is what helps cars come to a stop (brake). So the less friction there is the longer it will take to stop
Trains are better for the environment - as they produce less pollution per passenger than cars do.
The water gets into the brakes and when you stop there is less friction.
so that less friction is caused, and to improve speed